Protective knee pad



FIG. 1 is a perspective view of the front, right and top of a protective knee pad showing our new design, the leg shown in broken lines is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image of the right side;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a rear elevational view thereof.

The crosshatch surface shading shown in FIGS. 1-6 is understood to repeat throughout the indicated area. The strap is shown broken away in FIG. 6 for clarity of illustration. 

The ornamental design for a protective knee pad, as shown and described. 